Terrestrial Salamander Monitoring Project
... young … reproductive strategy? • no lungs – respire through skin, must avoid dessication • cold-blooded • territorial and aggressive ...
... young … reproductive strategy? • no lungs – respire through skin, must avoid dessication • cold-blooded • territorial and aggressive ...
a review and synthesis1
... and Y tendencies resulted in the production of ill-adapted offspring could arise at B.” In other words, we are considering the early stages of speciation, with some ecological and (or) morphological differences having accrued between populations A and C. These two populations are still able to produ ...
... and Y tendencies resulted in the production of ill-adapted offspring could arise at B.” In other words, we are considering the early stages of speciation, with some ecological and (or) morphological differences having accrued between populations A and C. These two populations are still able to produ ...
a critique of the
... species are ecologically equivalent to one another. Ecologically equivalent species cannot coexist (Chesson and Huntly 1997), and species should randomly go extinct as their relative abundances vary stochastically until only one species remains (Hubbell 2001). Neutral dynamics cannot act to maintain ...
... species are ecologically equivalent to one another. Ecologically equivalent species cannot coexist (Chesson and Huntly 1997), and species should randomly go extinct as their relative abundances vary stochastically until only one species remains (Hubbell 2001). Neutral dynamics cannot act to maintain ...
Niche conservatism as an emerging principle in ecology and
... signal) could also be consistent with NC (and previous studies claiming to find NC by this criterion have not necessarily been misled). We find no compelling argument for claiming that NC is present only when phylogenetic signal is stronger than expected under BM. This type of model-fitting approach ...
... signal) could also be consistent with NC (and previous studies claiming to find NC by this criterion have not necessarily been misled). We find no compelling argument for claiming that NC is present only when phylogenetic signal is stronger than expected under BM. This type of model-fitting approach ...
Predator-Dependent Species-Area Relationships
... 2001). Importantly, fish are often highly dispersal limited and, as such, their presence is often independent of pond size and other environmental characteristics. In the ponds used in this study, fish colonized ponds as a result both of human intervention (deliberate and accidental) and natural col ...
... 2001). Importantly, fish are often highly dispersal limited and, as such, their presence is often independent of pond size and other environmental characteristics. In the ponds used in this study, fish colonized ponds as a result both of human intervention (deliberate and accidental) and natural col ...
6 Biodiversity and Ecosystem Functioning in Grasslands
... Three factors of grassland environments distinguish them from other ecosystem types (Anderson 1982; Milchunas et al. 1988), these are drought, fire, and grazing by large ungulate herbivores. The influence of these three factors on grasses and grasslands has resulted in some of the most characteristi ...
... Three factors of grassland environments distinguish them from other ecosystem types (Anderson 1982; Milchunas et al. 1988), these are drought, fire, and grazing by large ungulate herbivores. The influence of these three factors on grasses and grasslands has resulted in some of the most characteristi ...
How humans drive speciation as well as extinction
... of novel species: of the world’s 40 most important agricultural crop species, six to eight can be considered entirely new [16]. Equally, beyond speciation, it has resulted in very large populations of species representing considerable genetic diversity [51]. Within domesticated species, new traits c ...
... of novel species: of the world’s 40 most important agricultural crop species, six to eight can be considered entirely new [16]. Equally, beyond speciation, it has resulted in very large populations of species representing considerable genetic diversity [51]. Within domesticated species, new traits c ...
Global climate change, range changes and potential implications for
... as a result of climate change. Cooler water-limited (CWL) species: CWL species occur from the ice-edges of polar waters to waters of a specific temperature range (see Fig. 1A for a theoretical example). As a result, it is likely that the ranges of these species are restricted only by warmer water te ...
... as a result of climate change. Cooler water-limited (CWL) species: CWL species occur from the ice-edges of polar waters to waters of a specific temperature range (see Fig. 1A for a theoretical example). As a result, it is likely that the ranges of these species are restricted only by warmer water te ...
Chapter 10 Amphibians
... in the Mantellinae, most species are restricted to humid habitats, but a few (e.g., B. doulioti, B. xerophilus) also occur in very dry areas. An intercalary element is present between the ultimate and penultimate phalanges of the fingers and toes. Finger and toe pads have a complete circummarginal g ...
... in the Mantellinae, most species are restricted to humid habitats, but a few (e.g., B. doulioti, B. xerophilus) also occur in very dry areas. An intercalary element is present between the ultimate and penultimate phalanges of the fingers and toes. Finger and toe pads have a complete circummarginal g ...
Summary of workshop «Contaminants in urban food webs
... quality assurance of TMFs generated in such environments, others did not share this view. At present the monitoring programs exclusively measures pollutant loads in different species of biota, and the need to also include measurements of pollutant loads in abiotic matrixes such as sediment and soil ...
... quality assurance of TMFs generated in such environments, others did not share this view. At present the monitoring programs exclusively measures pollutant loads in different species of biota, and the need to also include measurements of pollutant loads in abiotic matrixes such as sediment and soil ...
Sedum cools soil and can improve neighboring plant
... After the initial establishment period, plants would only receive supplemental water after two weeks without rain, at which point they would be watered once every five days until the next rain event. This watering schedule was modified slightly in that watering was terminated early (June 22, 2008) due ...
... After the initial establishment period, plants would only receive supplemental water after two weeks without rain, at which point they would be watered once every five days until the next rain event. This watering schedule was modified slightly in that watering was terminated early (June 22, 2008) due ...
Biodiversity is the variety of life. It can be studied on different scopes
... size of the natural areas such as forests, wetlands, shorelines, streams, and meadows in Vancouver. The Park Board Chair, Sarah Kirby-Yung stated, “Our Biodiversity Strategy lays the foundation for the sustained ecological health of our city.” The Biodiversity Strategy aims to develop and expand imp ...
... size of the natural areas such as forests, wetlands, shorelines, streams, and meadows in Vancouver. The Park Board Chair, Sarah Kirby-Yung stated, “Our Biodiversity Strategy lays the foundation for the sustained ecological health of our city.” The Biodiversity Strategy aims to develop and expand imp ...
Caddisfly diapause aggregations facilitate benthic invertebrate colonization
... whether facilitation occurs through passive accumulation of individuals, or through changes in the relative abundance distribution of assemblages with and without caddisfly aggregations (Table 1). A Monte Carlo simulation similar to rarefaction (Hurlbert 1971; Simberloff 1978) was used to estimate t ...
... whether facilitation occurs through passive accumulation of individuals, or through changes in the relative abundance distribution of assemblages with and without caddisfly aggregations (Table 1). A Monte Carlo simulation similar to rarefaction (Hurlbert 1971; Simberloff 1978) was used to estimate t ...
Determination of Primary Placeholder Habitat Associations in a Kelp
... should be noted that the branching reds may exhibit competitive superiority or have less specific recruitment cues, in that they strongly associate to both boulder and bedrock substrate. The strongly positive association of cup coral to bedrock and high relief reflects its preference for rocky areas ...
... should be noted that the branching reds may exhibit competitive superiority or have less specific recruitment cues, in that they strongly associate to both boulder and bedrock substrate. The strongly positive association of cup coral to bedrock and high relief reflects its preference for rocky areas ...
Chapter 5 review ES
... survive. Flowers depend on bees to pollinate them. Humans tend bee hives, offering the bees a place to live in exchange for some of their honey. The relationship among these three sets of organisms is… ...
... survive. Flowers depend on bees to pollinate them. Humans tend bee hives, offering the bees a place to live in exchange for some of their honey. The relationship among these three sets of organisms is… ...
Quick ways to help Slow-Worms
... litters of between six and 12. These young reptiles are independent from day one and will head off immediately to look for food. Courtship occurs between mid-May and June and slow-worms can become quite aggressive during that time. During courtship the male will take hold of the female by biting her ...
... litters of between six and 12. These young reptiles are independent from day one and will head off immediately to look for food. Courtship occurs between mid-May and June and slow-worms can become quite aggressive during that time. During courtship the male will take hold of the female by biting her ...
Mark Bachmann – The Role of Wetland Restoration on Private Land
... boundaries (and single tenure) – embrace this challenge! • Take the time to get to know people and find the common ground (people often value wetlands for very different reasons, but can come together for the same goal). • Wetland restoration allows you to explore the ‘shades of grey’ in a way that ...
... boundaries (and single tenure) – embrace this challenge! • Take the time to get to know people and find the common ground (people often value wetlands for very different reasons, but can come together for the same goal). • Wetland restoration allows you to explore the ‘shades of grey’ in a way that ...
Equal partnership: two trematode species, not one, manipulate the
... results in increased predation by birds on cockles, and thus enhanced transmission rates of the parasite to its bird definitive hosts. This host manipulation by the trematode is costly: fish regularly crop the tip of the foot of cockles stranded on the sediment surface, killing any metacercariae the ...
... results in increased predation by birds on cockles, and thus enhanced transmission rates of the parasite to its bird definitive hosts. This host manipulation by the trematode is costly: fish regularly crop the tip of the foot of cockles stranded on the sediment surface, killing any metacercariae the ...
The role of sharks in the ecosystem
... partitioning between elasmobranch species occupying the same habitat. While these studies inform us about what sharks prey on it does not provide insight into the effect of their presence in the ecosystem. It allows us to infer what the effect may be–for example, a species feeding exclusively on one ...
... partitioning between elasmobranch species occupying the same habitat. While these studies inform us about what sharks prey on it does not provide insight into the effect of their presence in the ecosystem. It allows us to infer what the effect may be–for example, a species feeding exclusively on one ...
NSF Forms - University of Florida
... The Federal Government has a continuing commitment to monitor the operation of its review and award processes to identify and address any inequities based on gender, race, ethnicity, or disability of its proposed PIs/PDs. To gather information needed for this important task, the proposer should subm ...
... The Federal Government has a continuing commitment to monitor the operation of its review and award processes to identify and address any inequities based on gender, race, ethnicity, or disability of its proposed PIs/PDs. To gather information needed for this important task, the proposer should subm ...
Amphibians of Jamaica
... Two species with SVL up to 40 mm • Genus Osteopilus: one species, SVL up to 80 mm • Genus Calyptahyla: one species, SVL up to 80 mm Some authors consider all four Jamaican hylid frogs to be Osteopilus. ...
... Two species with SVL up to 40 mm • Genus Osteopilus: one species, SVL up to 80 mm • Genus Calyptahyla: one species, SVL up to 80 mm Some authors consider all four Jamaican hylid frogs to be Osteopilus. ...
Habitat and Niche
... A species’ niche must be specific to that species; no two species can fill the same niche. They can have very similar niches, which can overlap, but there must be distinct differences between any two niches. When plants and animals are introduced, either intentionally or by accident, into a new envi ...
... A species’ niche must be specific to that species; no two species can fill the same niche. They can have very similar niches, which can overlap, but there must be distinct differences between any two niches. When plants and animals are introduced, either intentionally or by accident, into a new envi ...
ppt
... asks how well community-level patterns conform to predictions under the simplifying assumption that all individuals are equal (in terms of probability of recruiting, dying, and replacing themselves through ...
... asks how well community-level patterns conform to predictions under the simplifying assumption that all individuals are equal (in terms of probability of recruiting, dying, and replacing themselves through ...
Niche theory and guilds
... Ecological niches can thus be defined in terms of: -response functions: how species are distributed on environmental gradients with respect to limitation and optimal performance (a physiological view, prevalent among plant ecologists), i.e., a species’ response to the environment (Whose ideas follow ...
... Ecological niches can thus be defined in terms of: -response functions: how species are distributed on environmental gradients with respect to limitation and optimal performance (a physiological view, prevalent among plant ecologists), i.e., a species’ response to the environment (Whose ideas follow ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.